B3311331313231311331322331333132313331322331323133313331311331331123121323131
>>
B331133131323131133132233133313231333132233132313331333131133133112312132313
<<
B3311331313231311331322331333132313331322331323133313331311331331123121323133
>>
B3311331313231311331322331333132313331322331323133313331311331331123121323132
>>